2009年全国大学生电子设计大赛相关源代码

//-----段位式液晶显示操作------// /* 需要将段位式LCD板接到P5口上 */ #include <msp430x14x.h> #include "lcd.h" //unsigned int receive_buf=0x00; extern void Port_init(void); extern void Clk_init(void); extern void uart_init(void); extern void Lcd_init(void); extern void Lcdcmd(UNIT LCDcode); extern void Disbyte(UCHAR LCDbit,UCHAR LCDdisval); extern void Delayus(UNIT delaytimeus); extern void Delayms(UNIT delaytimems); extern void Disnum(UNIT numval); extern void displayaddr(UNIT addr); extern void displaytemp(UNIT temp); extern void displaylight(UNIT light); extern unsigned int uart_rx(void); extern void uart_tx(unsigned int Data ); char temp_receive[4] = {0,0,0,0}; unsigned char temp_rx[4]={0}; void main(void) { // unsigned int tmp[3]={0xaa,0x00,0xbb}; unsigned int i,j,addr,light; unsigned int temp; UNIT lcdval = 0; WDTCTL = WDTPW + WDTHOLD; // 停止看门狗 Port_init(); //初始化端口 Clk_init(); //初始化时钟 Lcd_init(); //初始化液晶 uart_init(); P2OUT=~0x00; // lED initial /* i=0;j=0; addr=0x00; //lcd variable initial temp=0x00; light=0x00; */ //uart receive buf clear Delayms(500); //延时500ms，大概的延时，不精确！ Disnum(lcdval); //液晶显示数据函数，液晶显示“0000” char temp_t1[2] = {0xaa,0x1}; char temp_t2[2] = {0xaa,0x2}; char temp_rx[4] = {0,0,0,0}; //char temp_test[4] = {1,2,3,4}; //int wendu; int count; displaytemp(0); /* while(1) { uart_tx(0xaa); uart_tx(0x01); temp_receive[0] = uart_rx(); temp_receive[1] = uart_rx(); temp_receive[2] = uart_rx(); temp_receive[3] = uart_rx(); //displaytemp((unsigned int)temp_receive[2]); } */ // while(1); //////////////////////////////////////// // wait for key down. while(1) { if((P1IN&0x01)==0x00)//扫描键盘P1.0 { Delayms(50); if((P1IN&0x01)==0x00) { count = 0; uart_tx(0xaa); uart_tx(0x01); for(i=0;i<500;i++) { temp_rx[count] = uart_rx(); count = count + 1; if(count >= 4) break; } displaytemp((unsigned int)temp_rx[2]); } /* if(count >=4&&temp_rx[0] == 0xcc &&temp_rx[1]==0x01) { displaytemp((unsigned int)(temp_rx[2])); if(temp_rx[3]&0xf == 0xf) P2OUT = 0x01; else P2OUT = 0x0; break; } } // if(temp_rx[3] != 0xbb) // displaytemp(0x888); } //等待接收 } /////////////////////////key2 if((P1IN&0x02)==0x00)//扫描键盘P1.0 { Delayms(50); if((P1IN&0x02)==0x00) { count = 0; for(j=0;j<100;j++) { for(i=0;i<2;i++) uart_tx(temp_t2[i]); for(i=0;i<500;i++) { if((IFG1 & URXIFG0) != 0) { temp_rx[count] = RXBUF0; count = count + 1; if(count >=4&&temp_rx[0] == 0xcc &&temp_rx[1]==0x02) break; } } if(count >=4) { break; displaytemp((unsigned int)(temp_rx[2])); if(temp_rx[3]&0xf == 0xf) P2OUT = 0x02; else P2OUT = 0x0; } } // if(temp_rx[3] != 0xbb) // displaytemp(0x888); } //等待接收 } } } */ /* if((P1IN&0x02)==0x00)//扫描键盘P1.1 { tmp[1]=0x02; for(i=0;i<3;i++)//发送命令数据报2 { uart_tx(tmp[i]); } //等待接收 ///////////////////////////////////////// // Delayms(500); for(i=0;i<4;i++) { while ((IFG1 & UTXIFG0) == 0); //USART0接收缓存有数据吗？ TXBUF0=temp_t1[i]; } for(i=0;i<4;i++) { temp_receive[i] = uart_rx(); } i=0xfff; while(i--); */ } } }